7
gaps
6
apertures(noun, box, breaks, channels, fans)
5
doors(noun, entrances)
4
holes(noun, breaks, cuts, channels, fans)
3
orifices
3
entrances(noun, entrances)
3
gates
3
introductions(noun, tops, beginnings, bases, leads)
3
mouths
3
opportunities
3
overtures(noun, leads, surveys, approaches, additions)
3
preambles(noun, leads, surveys, approaches, additions)
3
prefaces(noun, tops, bases, leads, approaches)
3
preludes(noun, tops, bases, leads, approaches)
3
vents
2
beginnings
2
cavities(noun, box, breaks, holes, hearts)
2
cracks(noun, breaks, cuts, holes, channels)
2
crevices(noun, box, corners, recesses, nooks)
2
firsts(noun, adjective)
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APASmart Define. (2015). openings thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/openings/thesaurus/synonyms
ChicagoSmart Define. 2015. "openings thesaurus" https://smartdefine.org/openings/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, openings thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/openings/thesaurus/synonyms>.
MLASmart Define. "openings thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/openings/thesaurus/synonyms>